In order to reduce the impact of solar radiation on temperature sensors of airborne dropsondes,an array-style NTC bead thermistor temperature sensor for use on board the dropsonde aircraft was designed.The true value of atmospheric temperature was inferred by the ratio of solar radiation error between the probes.Firstly,the radiation error of the different probe lead angles was calculated by computational fluid dynamics(CFD)method,and the probe angle with small and stable radiation error was selected.Then,the solar radiation error ratio of the thermistor probes coated with different solar radiation reflection materials on the surface was calculated.Subsequently,a radiation error ratio correction model was obtained through fitting simulation by support vector machine(SVM).Finally,to verify the measurement accuracy of the array-type NTC bead thermistor temperature sensor,a low-pressure wind tunnel and a solar simulator experiment platform were built.The experimental results indicate that the temperature sensor array can reduce the measurement error to 0.065 ℃ and the root mean square error to 0.078 ℃,it is expected that the impact of solar radiation errors on temperature measurement of the dropsonde can be reduced to within 0.1 ℃.